Phillips, John L., 1923- The origins of intellect: Piaget's theory / [by] John L. Phill ips, Jr. - San Francisco : W. H. Freeman, [1969] - xviii, 149 p. : ill. ; 24 cm. - A Series of books in psychology . Includes bibliographical references ( p [133]-144 ) Subjects--Personal Names: Piaget, Jean, 1896- Subjects--Topical Terms: Intellect.Child psychology. Dewey Class. No.: 155.41/3